diff options
| author | Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> | 2006-12-01 15:28:14 -0800 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-12-07 11:21:55 -0800 |
| commit | 17e77b1cc31454908aa286bb1db3c611295ce25c (patch) | |
| tree | 8d4cae677dfec84d4f41a93b8758bad5b1b8761f /include | |
| parent | 6dbfc19b7ea93f94f1efabaae71a921b49d8cae2 (diff) | |
| download | linux-17e77b1cc31454908aa286bb1db3c611295ce25c.tar.bz2 | |
[PATCH] Add support for type argument in PAL_GET_PSTATE
PAL_GET_PSTATE accepts a type argument to return different kinds of
frequency information.
Refer: Intel Itanium®Architecture Software Developer's Manual -
Volume 2: System Architecture, Revision 2.2
(http://developer.intel.com/design/itanium/manuals/245318.htm)
Add the support for type argument and use Instantaneous frequency
in the acpi driver.
Also fix a bug, where in return value of PAL_GET_PSTATE was getting compared
with 'control' bits instead of 'status' bits.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ia64/pal.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h index 308e94f6299e..bc768153f3c9 100644 --- a/include/asm-ia64/pal.h +++ b/include/asm-ia64/pal.h @@ -84,6 +84,11 @@ #define PAL_SET_PSTATE 263 /* set the P-state */ #define PAL_BRAND_INFO 274 /* Processor branding information */ +#define PAL_GET_PSTATE_TYPE_LASTSET 0 +#define PAL_GET_PSTATE_TYPE_AVGANDRESET 1 +#define PAL_GET_PSTATE_TYPE_AVGNORESET 2 +#define PAL_GET_PSTATE_TYPE_INSTANT 3 + #ifndef __ASSEMBLY__ #include <linux/types.h> @@ -1141,10 +1146,10 @@ ia64_pal_halt_info (pal_power_mgmt_info_u_t *power_buf) /* Get the current P-state information */ static inline s64 -ia64_pal_get_pstate (u64 *pstate_index) +ia64_pal_get_pstate (u64 *pstate_index, unsigned long type) { struct ia64_pal_retval iprv; - PAL_CALL_STK(iprv, PAL_GET_PSTATE, 0, 0, 0); + PAL_CALL_STK(iprv, PAL_GET_PSTATE, type, 0, 0); *pstate_index = iprv.v0; return iprv.status; } |